Box-finishing machine



A) BELL. Box FINISHING MACHINE'.

- y -A'PPLlcATloN man APRQIa. 1921. 1,392,102. l Patentedept. 27, 1921.

027. M f :EW .2, ARBHU/ BELL BELL.

BOX HNISHING MCHINE.

APPLICATION lmsn ma. 13, 1921.

1,392,102. Patentedsepf 27,1921.

3 SHEETS- SHEET 2- a i Arion/1ers www A. BELL.

-BOX FINISHING MACHINE.

APPLICATION FILED APR. I3. 192|.

1,392,102, ,Pandsepn 27,1921.

60 3 SHEETS-SHEET 2i.

Wl TNESSES INVENTOR Af? THU/ BEL 1 A TTRNEYS UNITED STATES ARTHUR BELL, OF RIDGEFIELI) PARK, NEW JERSEY.

BOX-FINISHING MACHINE.

Application lei April 13,

To all whom it mayV concern Beit known that I, ARTHUR BELL, a citi zen of the United States, and a resident of Ridgefield Park, in the county of VBergen and State of New Jersey, have invented a new and Improved Box-Finishing Machine, of which the followingA is a full, clear, and exact description.

This invention has relation. to box inachinery and refers more particularly to a finishing machine for paper boxes y,which are provided with exteriorfcoverings.

According to the present practice, after the outer sides of Vthe box or lid has been covered, the operation of turning the edges of the covering within the mouth of the box and pressing the same thereto has been almost universally accomplished by hand principally due to the great variance in the sizes of the boxes vand lids.V

This invention contemplates and seeks for some of its principal objects to produce at a nominal cost an efiicient finishing machine for this purpose by means of which the output and production will be materially increased with a minimumnumber of employees; a machinev which will function to obtain a more perfect finish to the boxtlian is now possible by hand labor; a machine inwhichk means is provided to compensate for the great variance in the sizes ofthe boxes and lids, and a machine in which means ofadjustment can be obtained whereby the same will properly handle boxes and lids made from material of different thicknesses. A v

l/Vith the above recited and other objects in view, the invention resides in the'novel` construction, combination and arrangement of parts set forth in the following Vspecification, pointed out in the appended claims and illustrated in the accompanying drawings, it being'understood that the right is reserved to embodiments other than those actually shown herein, to the full extent indicated by the Lgeneral meaning of the terms in which the claims are expressed and by variations in the phraseology of thesame.

In the drawings` Figure 1 is a plan view of the machine illustrating the position of parts prior -to the turning in and pressing operation.

Fig. 2 is a fragmentary front elevation illustrating the position of parts immediately `after the turning in and pressing operation has been completed.

Y Specification of Letters'latent. Y Patented Sept. 27, 1921.

1921. Serial No. 461,056.

Fig. 3 is a side elevation illustrating the position of parts as shown in Fig. 1.

Fig. 4 is a longitudinal sectional view taken on the line 4-.4 of Fig. 1 illustrating in full lines thev position of parts as shown in Fig. 2` and in dotted lines the position` of the parts as illustrated lin Fig. 1.

Fig. 5 is a detail view illustrating the manner Vin which the `adjustment ofthe f Referring to the drawings by charactersv Y of reference which designate like parts throughout the several views thereof, Vthe frame work of the machine includes a base -10 having vertical standards 11 at its forward end and rearwardly extending downwardly inclined side rails 12 supported atl theirgforward end by the standards' 11l and at their rear extremities by the brace bars, 13. A backing plate 14 is mounted between the standards 11 at the upper end of the frame work and is adjustable forwardly or rearwardly by means of a stud bolt 15. v A pair of supporting tables 1G and 17 are mounted directly in frontofl the backing plate 14 for independent vertical adjustments by means of the rack and pinion kconnection 18 and 19. The manipulating wheels 20 are keyed to the pinion shaft for the purpese of actuating the pinions to secure the adjustment of the tables. The backing plate is provided at its opposite ends with forwardly extending guide arms 21 disposed at Va right angle thereto. By this arrangement boxes of Vvarious heights may be handled by the machine by adjusting the tables vertically to bring the upper edge of the box in a plane tovregister with the upper edge of thebacking plate. The mechanism for turn,-

ing in and pressing the edges of the box llO pivoted therebetween the free extremities of the side arms of a yoke 23.' A channeled member 24 is adjustably mounted on `the yoke by means of the threaded studs 25 which extend through the slots 2G inthe body of the yoke and the clamping nuts 2T which are threaded thereon. The recess 28 in the channeled member 24 is adapted to respectively receive the lugs 29 provided on the clamping` plates 30 and the guide blocks 31 for the clamping fingers.. rlhe clamping fingers 32 are respectively mounted between the guide ribs 33 of the guide blocks. fr retaining bar 34`i's arranged over thechanneled member 24 and is secured at its opposite extremities vto the side arms 23 of the yoke by means of the set screws 35 which are passed through' the slotted extremities thereof. The clamping` fingers are provided with an enlarged head 37 at their upper end to provide a shoulder 33 at the juncture of the head with thel lingers which shoulders rco-act with the retaining bar to limit the forward projection of the free end of the fingers with respect to the yoke. The head of each finger is providerL with a stud 39 and the retaining member 34 is provided with a plurality of studs 40 .corresponding` in number with the number of clamping fingers and disposed in alineinent with the studs`39. An elastic band or coiled contractile spring 41 is designed to operatively connect the studs 39 and 40for normally effecting the movement of the finggers to engage the shoulder 38 with the retaining bar. The il-shaped frame is provided with a, rearwardly projecting stem 42, the free extremity of which is maintained in contact-with a cam 43 mounted on the cam shaft 44 by means of the springs 45 which are respectively secured at their opposite extremities to the fra-me 22 and the side rails 12. The swinging yoke 23 is connected by means of link 46 to one extremity of the thrust rod 47 mounted in the bearing 48. r1`he opposite extremity of the thrust rod is maintained in contact with the cam 49 by means of a spring 50. rllhe cam 40 is mounted on a cam shaft 51, and said cam shaft is driven by the belt and pulley connection 52 and 53 from a suitable motor 54. The cam shafts 5l and 44 are simultaneously driven in any suitable manner. a counter shaft 55 being` shown for the purpose which is provided at its opposite ends with beveled gears 5G and 57. The beveled gears 56 and irespectively mesh with the bevel pinions 53 andi59 on the camshafts 5l and 44. i

ln operation of the machine. the boxV A which has previously been covered by the covering l is set on one of the tables 16 or 17 with the open end arranged uppermost. The table 16 is adjusted vertically to bring the upper edge of the ybox A. in registry' with the upper edge of theA backing plate 14,

of its movement, the cam 49 will lift the thrust arm 4'? to swing the yoke 23 to a vertical position thereby swinging the forward extremities of the fingers downward and within the mouth of the box A to turn the edge C of the covering B in over the upper edge ofthe side of the box and press and clamp thel same thereagainst between the backing plate andthe clamping plate and fingers. rihe clamping linger 32 which alineswith one of the sides of the box will engage the same and be lifted thereby against the tension ofthe elastic band or spring. j return of a lifted finger to its normal position, yoke G0 is mounted on the yoke 23, the sidev arms 61 thereof being confined thereagainst by the retaining bar 34, The free extremities of the side arms 61 are provided with laterally extending projections 62 which co-act with .the side armsof the frame ,22 when the yoke 23 is swung to a vertical position .vhereby,I the cross bar or4 vbody of the yoke GO is lifted out of Contact with the heads of the clampingfingers to provide a clearance to permit the same to be lifted. vhen the' frame 22 moves yrearwardly and the yoke 23 is: swung to a horizontal position the springs 63 will advance. the cross bar of the yoke into contact with all ofthe heads of the clamping fingers to return the same to normal position. The

inclination of the side rails 12 of the frame work of the machine causes the frame 22 to operate in an inclined planewhereby the forward extremities of the plates 30 and the ln order to positively insure the4 finger. 32 will strike the free edge C of the covering B at an angle to minimize and practically eliminate the probability of tearing the same upon the initial turning over thereof. .inasmuch the limit of the forward movement of the frame 22 is constant, it is necessary to adjust the' backing plate 14 to compensate for boxes constructed from material of various thicknesses. l/Vhere the material from which the box `is constructed is thin7 the backing plate is adjusted to move 'its front 'face forwar'dand wherever Athe' stockis of thicker material it is adjusted rearward. '1n order'that the extremities ofthe'plates and fingers may exert a pressure throughout the fullwidth of the turned-in portion of the covering, it may be found necessary to adjust the channeled membei` 24 by sliding the same forwardly neous use of the machine for finishing thek box lids and boxes. c

It will thus beseen that a simple and effective machine has been devised for turningiii and pressing the edges of the box covering which is entirely automatic'in its operation and which will operate in connection with boxes of various heights, widths and lengths. It is obvious from the con` struction that where a large order of standard sizes of boxes are to be yoperated on, theV fingers may be dispensed with and in lieu thereof plates may be employed entirely. In this instance the width of one of the plates will represent the width of the interior of one dimension of the box while the width of a pair of combined plates will represent the length of the interior dimension of the boxes.

claim:

l. in a box finishing machine, a base plate against which the box sides are adapted to be successively held, means for registering the edge of its mouth with the edge of the plate and means slidable over said registered edges and swingable downward withinthe mouth of the box, said means adapted to coact 'with the extended portion of the box covering to turn the same within the box mouth and press the sam-e thereagainstto paste it thereto.

2. In a b ox finishing machine, a base plate against which the box sides are adapted to be successively held, means for registering the edge of its mouth with the edge of the plate, means slidable over said registered edges and swingable downward within the mouth of the box, said means adapted to con act with the extended portion of the box covering to turn the same within the box mouth and press the saine thereagainst to paste it thereto, and means for adjusting the sliding movement of said means over said edges.

3. ln a box finishing machine, a base plate against which the box sides are Vadapted to be successively held, means for registering the edge of its mouth with the edge of the plate, means slidable over said registered edges and swingable downward within the mouth of the box, said means adapted to coact with the extended portion of the box covering to turn the same within the box mouth and press the same thereagainst to paste it thereto, means for adjusting the sliding movement of said means oversaid edges, and means for "adjusting said plate relative tothe sliding means.

A machine of the'character described against which the boxwalls arev adapted to be successively held, a member slidably and pivotally mounted with respect thereto,

means carried thereby adapted to co-act with the backing plate to effect thetui'ning in of exert a pressure thereon for sealing the thereto. Y

5..,In a machine for finishing covered boxes, a backing plate aga-inst which the sides of the box are adapted to be succes* sively held, means for registering the free edges of the box with one edge of the baclring plate, a pivoted member mountefladjacent thereto and adapted to slide over said edge ofthe backing plate and means for swinging the forward edgeof said member over'the inner edge of the vbex side to turn the edge of the box covering` into the mouth of the box and press the saine tliereagainst for sealing it thereto.

6. A box finishing machine adapted to turn the edges of the covering and press the same against the inside of the box to seal it thereto, includingV a backing plate, a reciprocating frame slidably mounted with rek7() comprising an adjustable backing plate spect thereto, clamping elements pivotally f carried by said frame and adapted to be pro# jected over one edge of the backing plateI and swung within the box to turn the edge same against the inside of the boxto seal it thereto, including a backing plate, a reciprocating fraineslidably mounted .with respect thereto, clamping elements pivotally carried by said frame and adapted to be projected over one edge of the backing plate and swung within the box to turn the edge of the covering tliereover and press the same against thel box edge between the backing.

plate and the clamping elements, and mechanism for actuating the frame and said clamping elements. i

8. In a machine for finishing boxes of the character described, a reciprocating frame, a stationary backing plate located at the for ward limit of movement of said frame, a

pivoted yoke at the forward end of the first. frame, a plurality of Vclamping elements carried by the pivoted frame and adaptedto be projected beyond the forward edge of the backing plate, means .for supporting a box with one side against the backing plate, means for registering the free edge ofsaid side` with an edge of the backing plate to dispose the extended portion of the covering in the path of movement of the clamping elements and mechanism for actuating the frames to project the forward extremities of the clamping elements over the box edge and swing the same into the boX :for turning the edge of the covering Within the box and pressing the same thereagainst for sealing said edges together.

9. A machine as characterized in claim 8, in which the clamping elements are mounted in the swinging frame for sliding movements whereby certain o'f said 'elements may be moved upward upon Contact with the box edges when the pivoted frame is swung to Idispose certain of the elements Within the l0. A machine as characterized in claim 8, in which the clamping elements are mounted in the swinging frame for sliding movements whereby certain' of said elements may be moved upward upon contact vwith the box edges when the pivoted Jframe is swung to dispose certain'of the elements Within the box, and means for returning the said elements to normal position.

ARTHUR BELL. 

